Jennifer Lawrence (Silver Linings Playbook) and Jessica Chastain (Zero Dark Thirty) are believed to be the nominees to beat in Best Actress. Also vying for the award: Naomi Watts (The Impossible), 85-year-old Emmanuelle Riva (Amour), the oldest Best Actress hopeful ever, and 9-year-old Quvenzhané Wallis (Beasts of the Southern Wild), the youngest.